Did you know that Stephen Hawking, the British theoretical physicist known for his contributions in the fields of cosmology and quantum gravity and author of the bestseller A Brief History of Time, was diagnosed with amyotrophic lateral sclerosis (ALS), a paralyzing disease that causes the body’s muscles to weaken, at a young age? Immobilized in a wheelchair, he gradually lost the ability to speak and communicated with the environment with the help of a computer voice synthesizer. Fortunately, the disease did not affect his brain, so he could devote himself to work for many years.
